Switch



Nov. 13,1928.

J. K. KAHALEOHU swmcn Filed Feb. 19, 927 2 Sheets-Sheet 1 MAM INVENTOR ATTOR N EY WITNESS:

Nov. 13,1928. 1,691,291 '4 J. K. KAHALEOHU SWITCH Filed Feb. 19, 1927 2 Sheets-Sheet 2 INVENTOR ATTO R N EY WITNESS:

i j I idle with'the switch colyel i i; so; i

- substantially on theline 7 of Figure 2 but looking inn direction opposite that ind cated 1 bythe, arrows,-theyiew also showing the plug i t 1 QT E E T KA UcY-Pl A A E; E-Q NQL W T mie stem 1 ifswmcei i a c This invention relates to circuit'controlling inglyheldiu openpositionfand closed by the poinfted'out'in the ppendedc'laijp ffironillustratingthe invention? V Figure} 21's an enlarged -fragmentary secremoved; f

Figure 6- is .a" detaili'se'ctional "View {taken which detach'aloly ,engagesthe electric termi- 3 nalsof the iiomfa'portion of theplug'being c 'brokenaway andshownin section. s Figure? i's a'sectlonf taken'substantially thelinef7+ 7 ofFigure QWltll the ironin "plan andthe plug removed from the socket. 40 '1 f Referring to the drawings detail Where a in like; character-sot reference ,denoteoorre.-, I j sponding' parts, the referencecharacter 1O in-v dicatesan electricj'ironwhichisproyided" 1 I 'withthe usual socket 11 for the reception of." 5 a plug 12, loymeans of-Whichthe iron maybe gonnected to a source of current through conductor Wiresi13. [The ironfurther comprises,

a handle which includes'a yoke-shapedmemher 14 connected Withthe iron as indicated at 50 15 and providedjwith'av handleor grip lfiof suitable material. I i

Y T-hehandle orjgriplh isprovidedyvitha h recess -17 for receiving an electrieswitch'.

This switch comprises an insulated base 18 65 rupon which are mounted spacedcontacts 19 Screws 20 secure these contacts to the base 17 pen When the iron isnot in Another ohjectnof the invention-is the *p'roi vision of meansiorfholding the switch closed when desired; and is especially adapted for. use when the iron is being initially "heated h.

a With the above-andJotherobjects inflview v 15' "the" invention' iu'rt'her includes,thei following 5 novel features anddetail's o11construction,to a 1" *be'- hereinafter imore}; any jdescribed, illustr'ated in'flthe accompanying drawings and Y i held spaced from the oet spring '28. ,Th

tweet-tier heatre fromthe pluggl2; are {connectedto Ethe con-1 grip lbf i The switch further includes acover which is spaced from theconta'cts 19', hile h h H late-f 24Which is-madegof suitable' material and and a1sd'fs'e ve to secure thehase the recess; 1 The contacts 19fc'arry 'bindingjscrews f "215by" means of 'wrhich conductor wir'es 22" 60 tactshth'ei saidconductor} Wire's; extending through bores in the handleo'r s plate and base 18 is a Contact PlatetQSJThe contact plate 25 carries finger piece} :26 which extends "through an opening .27 'ro= 'vided in the cover 1ilate24landwhic is adapted to engage and hridgej'the contactsj19 to complete" a circuit {through'j the conductor 111- 922. The contact plate Qtris yieldingly e base is provided Witha pin 29 which extendsintoftheisprin 28 and contacts 19 by means" Iac'tsto'holdthelatt'erfi pos tion. pin 30 ,1

also extends from-theiha se forcntrance into a: socket 31'p1'0vi.dedinone endfofthef late 24;- "The plate is thus"prop'erlypesitione Within therecess Ino'rder to ren'iovablyhold the plate in placejthere is-fs'ecmedyte thefrhandle or. grip at each end ofthe platefl lj by means of 'scre'vvs32, vplates 33 which engage oyer the adjacentends o-f'thecoyerplate. Thelatter mayflthuslbe readily removed for inspection ofytheswitch and thereaftereasilyreplaced;

{from the foregoing description andaccom panying draw1ngs, 1t .W1ll be seen that the in- ;ventlon provides anoi in-ally open swltch so 'itha'ti whenthe iron is not in'useno current grips the handleor grip 16 ,Will press the fin- Zeal-ne through the heating element. When it"isdesired to use the iron, the handwhich' 5;

gerpiece or button 26 inward so-as to close theswitch and permit current to flow through I i the heating elen1ent. .Thus,*if the user.tor- 7 gets to-shut oil the current, the'circuitwillbe' automatically opened. 7

Secured to the yokel' l by means of a screw 34 is a plate 35 which carries spaced bearings 36 and 37, andmounted for rotary movement 'in these'hearings is a shaft 38. Secured to this shaft is a collar 39 and this collar and the bearing 36am pr'oyided upon their opposed faces with teeth 40, 'A spring 41 mounted upon the shaft between the collar 39- and the hearing 37' acts to 'yieldingly hold the ,teethin engag'ed position so as to prevent.

accidental movement of the collar. A Extend ing fro'rn the collar 39 is an arm 42 Which carried contacts and afinger piece carried by ward to engage the arm. 43 with the linger piece orbutton 26 and hold the switch in closed position. The spring 41 yieldingly holds the teeth a0 en 'a 'ed so that )ressure upon the finger piece 24 willperm'it the shaft and consequently the arm {22 to move.

The arm 42 is preferably formed of spring metal so as to provide proper contact between the contact 25 and the contacts 19. i

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is here in reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention what is claimed is 1. The combination with a hand grip having a recess therein, of a switch comprising an insulated basepositioned within the recess, spaced contacts mounted uponthe base and adapted to be connected in an electric circuit, a' cover plate spaced from the base and having an opening therein, a spring resisted movable contact located between the cover plate and baseand normally spaced from the base 1 themovable contact and extending through An operating finger 44 is secured to one end of the shaft 38 and provides a con-e When it I the opening in the cover plate and holding plates secured to the grip at opposite ends of and engaging the cover plate to removably hold the latter in place.

2. In an electric iron, a handle carried normally open switch including a spring ac- 45 tuated button, an arm mounted for pivotal and lateral movement adjacent the handle and adapted to engage the button and press the latter inward to close the switch, means lo cated laterally of the arm Behold the arm in adjusted position, means to yieldingly force the arm to engage the holding means and an operating member for the arm.

In an electric iron, a handle carried normally open switch including a spring actuated button, a plate mounted below the handle and provided with spaced bearings, a rock shaft mounted in said bearings, a collar secured to the shaft and adapted to engage one of the bearings to hold the shaft against rotary movement, means to yieldingly hold the collar in engaged position and an arm extending from the collar to engage the button and hold the switch in closed position.

4. In an electric iron, ahandle carried normally open switch including a spring actuated button, a plate mounted below the handle and provided with spaced bearings, 21 rock shaft mounted in said bearings, a collar secured to the shaft and adapted to cnga t; one of the bearings to hold the shaft against rotary movement, means to yieldingly hold the collar in engaged position, an arm extending from the collar to engage the button and hold the switch in closedposition and an op- 7 crating finger for the shaft.

In testimony whereof I aflix my signature.

JOSEPH K. KAI-IALEOHU. 

